6667610: (Escape Analysis) retry compilation without EA if it fails
Summary: During split unique types EA could exceed nodes limit and fail the method compilation.
Reviewed-by: rasbold
/*
* Copyright 1998-2006 Sun Microsystems, Inc. All Rights Reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
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* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
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*/
#include "incls/_precompiled.incl"
#include "incls/_preserveException.cpp.incl"
// TODO: These three classes should be refactored
PreserveExceptionMark::PreserveExceptionMark(Thread*& thread) {
thread = Thread::current();
_thread = thread;
_preserved_exception_oop = Handle(thread, _thread->pending_exception());
_thread->clear_pending_exception(); // Needed to avoid infinite recursion
_preserved_exception_line = _thread->exception_line();
_preserved_exception_file = _thread->exception_file();
}
PreserveExceptionMark::~PreserveExceptionMark() {
if (_thread->has_pending_exception()) {
oop exception = _thread->pending_exception();
_thread->clear_pending_exception(); // Needed to avoid infinite recursion
exception->print();
fatal("PreserveExceptionMark destructor expects no pending exceptions");
}
if (_preserved_exception_oop() != NULL) {
_thread->set_pending_exception(_preserved_exception_oop(), _preserved_exception_file, _preserved_exception_line);
}
}
// This code is cloned from PreserveExceptionMark, except that:
// returned pending exceptions do not cause a crash.
// thread is passed in, not set (not a reference parameter)
// and bug 6431341 has been addressed.
CautiouslyPreserveExceptionMark::CautiouslyPreserveExceptionMark(Thread* thread) {
_thread = thread;
_preserved_exception_oop = Handle(thread, _thread->pending_exception());
_preserved_exception_line = _thread->exception_line();
_preserved_exception_file = _thread->exception_file();
_thread->clear_pending_exception(); // Pending exceptions are checked in the destructor
}
CautiouslyPreserveExceptionMark::~CautiouslyPreserveExceptionMark() {
assert(!_thread->has_pending_exception(), "unexpected exception generated");
if (_thread->has_pending_exception()) {
_thread->clear_pending_exception();
}
if (_preserved_exception_oop() != NULL) {
_thread->set_pending_exception(_preserved_exception_oop(), _preserved_exception_file, _preserved_exception_line);
}
}
void WeakPreserveExceptionMark::preserve() {
_preserved_exception_oop = Handle(_thread, _thread->pending_exception());
_preserved_exception_line = _thread->exception_line();
_preserved_exception_file = _thread->exception_file();
_thread->clear_pending_exception();
}
void WeakPreserveExceptionMark::restore() {
if (!_thread->has_pending_exception()) {
_thread->set_pending_exception(_preserved_exception_oop(), _preserved_exception_file, _preserved_exception_line);
}
}